Sensata ISOSLICE-7 Digital Input Pulse Counting or 2 Frequency Input Iso Slice Unit User Manual
- June 3, 2024
- Sensata
Table of Contents
Sensata ISOSLICE-7 Digital Input Pulse Counting or 2 Frequency Input Iso
Slice Unit
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ISOSLICE-7
The ISOSLICE-7 unit has 1 digital input for counting pulses or 2 digital inputs used for measuring frequency. The selection is made using dip switch 1. See the section on input mode for further details. In pulse counting mode (dip switch 1 off) the number of pulses is stored as a 32-bit number, spread over 2 parameters read by the E100 or Z-Port.
Parameter
- Pulse input 1 high 16-bits
- Pulse input 1 low 16-bits
The cumulative pulse count is saved every 14 seconds, in case of power failure. In frequency measuring mode (dip switch 1 on) the frequency read from the 2 digital inputs can be scaled from one of four ranges : 0 to 10Hz, 100Hz, 1000Hz, 10000Hz. See the section on calibration for further details.
Parameter
- Scaled frequency of input 3
- Scaled frequency of input 5
Digital Inputs Link Fitting
There are 3 different input types the unit can accept
Volt Free Contact
The digital input is an optoisolator that must be connected to the common to
switch the input “ON”. The input links must be fitted in the higher positions
like this:
+24V dc input or +5V dc TTL input
The digital input is an optoisolator that must be powered externally by a +24V
dc or +5V dc input on the Input terminal, with the corresponding Ground to the
Common terminal, to switch the input “ON”. The input links must be fitted in
the lower positions like this
Channel Number
The channel number is set up using the 8-way dipswitch, switches 2 to 8. If
all switches are off, the channel number is 1 (invalid, indicated by the LED
flashing red):
Address Switches Action
- 8 add 1
- 7 add 2
- 6 add 4
- 5 add 8
- 4 add 16
- 3 add 32
- 2 add 64
Switches Switches 1 = On, 0 = Off
- Channel
- 2 3 4 5 6 7 8 Channel 2 3 4 5 6 7 8
- 1 0 0 0 0 0 0 0 9 0 0 0 1 0 0 0
- 2 0 0 0 0 0 0 1 10 0 0 0 1 0 0 1
- 3 0 0 0 0 0 1 0 11 0 0 0 1 0 1 0
- 4 0 0 0 0 0 1 1 12 0 0 0 1 0 1 1
- 5 0 0 0 0 1 0 0 13 0 0 0 1 1 0 0
- 6 0 0 0 0 1 0 1 14 0 0 0 1 1 0 1
- 7 0 0 0 0 1 1 0 15 0 0 0 1 1 1 0
- 8 0 0 0 0 1 1 1 16 0 0 0 1 1 1 1
Input mode
Switch 1 is used to select between pulse counting mode and frequency input
mode.
Switch 1 Off
Pulse counting on input 1
Switch 1 On :
Frequency inputs measured on inputs 3 and 5 In frequency measurement mode
the unit can measure any frequency between 0 & 10kHz scaled using 4 selectable
frequency ranges (see Calibration section for more details) The number of
pulses is retained and saved by the ISOSLICE 7 unit, so in the event of power
failure, the count is not lost. The count is saved at a maximum rate of once
every 13.4 seconds, to preserve the life of its non volatile memory. Each time
the to tal is saved, the green led will switch off briefly.
Reset Pulse Count Total
The pulse count total can be reset. Hold the raise button on the front panel
down for about 15 seconds, until the green LED switches off. Release the
button and the pulse count will have reset.
Connections
The digital input is wired like this:
Volt Free Contact:
+24/5V TTL Vdc Input
- 12. Common
- 5. Input 5 (frequency channel 2)
- 6. 11. Common
- 1. Input 1 (pulse counting only)
- 2. 9. Common
- 3. Input 3 (frequency channel 1)
- 4. 10. Common
Calibration of the input frequency range
The ISOSLICE 7 has an LED that shows which mode it is in. Green run mode Amber learn range for frequency channel 1 (input 3) Red learn range for frequ ency channel 2 (input 5) In run mode, the frequency ranges selected can be observed without the risk of changing the calibration. Push and release the Lower button to see the range for frequency channel 1 (input 3). The LED will flash amber. Count the number of times it flashes.
- 1 flash = 0 to10 Hz
- 2 flashes = 0 to100 Hz
- 3 flashes = 0 to1000 Hz
- 4 flashes = 0 to10000 Hz
In run mode, push and release the Raise button to see the range for frequency channel 2 (input 5). The LED will flash red. Count the number of times it flashes.
Changing the input range for channel 1 (input 3)
In run mode, press the Lower button and hold it for 4 seconds, until the
LED changes from green to amber. Release the Lower button. Push and release
the Raise button to increase the frequency range or Push and release the Lower
button to decrease the frequency range. The LED will flash green 1 to 4 times
after a button press, indicating the range selected. When the required range
has been selected, push both buttons at the same time and release. The amber
LED will extinguish for ¾ second then change to green, as the selected range
is saved and it returns to run mode. The range is retained over a power cycle.
Changing the input range for channel 2 (input 5)
In run mode , press the Raise button and hold it for 4 seconds, until the LED
changes from green to red. Release the Raise button. Push and release the
Raise button to increase the frequency range or Push and release the Lower
button to decrease the frequency range. The LE D will flash green 1 to 4 times
after a button press, indicating the range selected. When the required range
has been selected, push both buttons at the same time and release. The red LED
will extinguish for ¾ second then change to green, as the selected range is
saved and it returns to run mode. The range is retained over a power cycle.
Sensata Technologies 6 220808